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Cesium 与 Babylon.js 可视化 glsl 特效篇(十四)


我决定不从Babylonjs 基础来讲了 直接整合cesium与babylonjs可视化来讲

我整合一个类库 后续不断更新中

npm i @haibalai/cesium-babylonjs

初始化cesium -babylonjs 类库, map 是cesium 的viewer对象

import { BabylonMapManager } from “@haibalai/cesium-babylonjs”;
BabylonMapManager.init(map);

添加特效

import { BabylonMapManager } from “@haibalai/cesium-babylonjs”;
 const fragmentShader = `
 uniform float iTime;
 uniform vec2 iResolution;
 varying vec2 vUv;
 floatplasma(vec2 p, float iso, float fade)
 {
 float c = 0.0;
 for (float i=1.0; i<10.0; ++i) {
 float f1 = i / 0.6;
 float f2 = i / 0.3;
 float f3 = i / 0.7;
 float f4 = i / 0.5;
 float s1 = i / 2.0;
 float s2 = i / 4.0;
 float s3 = i / 3.0;
 c += sin(p.x * f1 + iTime) * s1 + sin(p.y * f2 + 0.5 * iTime) * s2 + sin(p.x * f3 + p.y * f4 - 1.5 * iTime) * s3;
 }
 //c = mod(clamp(c, -1.0, 1.0), 0.5) * 2.0;
 c = mod(c, 16.0) * 0.5 - 7.0;
 if (c < iso) {
 return 0.0;
 }
 else {
 if (c > 0.5) c = 1.0 - c;
 c *= 2.0;
 return c * fade;
 }
 }
 voidmain(void) {
 vec2 pos = (vUv - 0.5) * 2.0;
 float c = 0.0;
 for (float i=0.0; i<27.0; ++i)
 {
 float patazoom = mod(0.5 * iTime, 1.0);
 float zoom = 1.0 + i - patazoom;


Cesium 与 Babylon.js 可视化 glsl 特效篇(十四) - 小专栏


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